pH and Acidity Concepts - Intro to AFNR

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pH

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The measure of acidity or alkalinity in a substance such as soil.

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Acid

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A term used for a substance with a pH value less than 7.0.

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Alkaline (Base)

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A term used for a substance with a pH value greater than 7.0.

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pH is measured on a scale of 0 - 14

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The pH scale ranges from 0 to 14, indicating the acidity or alkalinity of a solution.

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pH value of 7.0 is neutral

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A pH value of 7.0 is considered neutral, meaning it is neither acidic nor alkaline.

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pH Scale

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The pH scale is special in that each pH point multiplies the pH factor by 10.

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Importance of pH for Plant Producers

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A correct soil pH allows plants to uptake soil nutrients required for growth and health. Certain soil nutrients become unavailable at different pH levels.

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Role of pH for Animal Producers

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Nutrient uptake in digestion is influenced by pH levels.

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Significance of pH for Agricultural Scientists

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pH is important for food preservation.

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Buffers

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Chemical substances that neutralize acids or bases when added to a solution